The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 2014
Filed:
Jul. 18, 2008
Junya Ogawa, Toyota, JP;
Koji Kanagawa, Toyota, JP;
Shuichi Nakahara, Aichi-ken, JP;
Tadashi Iida, Aichi-ken, JP;
Hiroyuki Nagano, Aichi-ken, JP;
Yoshizumi Matsuno, Aichi-ken, JP;
Yasushi Nakao, Aichi-ken, JP;
Junya Ogawa, Toyota, JP;
Koji Kanagawa, Toyota, JP;
Shuichi Nakahara, Aichi-ken, JP;
Tadashi Iida, Aichi-ken, JP;
Hiroyuki Nagano, Aichi-ken, JP;
Yoshizumi Matsuno, Aichi-ken, JP;
Yasushi Nakao, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Kansai Paint Co., Ltd., Hyogo, JP;
Abstract
This invention provides a method for forming multilayer coating film excelling in smoothness and distinctness of image, by 3-coat-1-bake system in which a step of applying onto a coating object a water-based intermediate paint (X) to form an intermediate coating film; a step of adjusting the solid content of the intermediate coating film to 70-100 mass %; a step of applying onto the intermediate coating film a water-based base coating paint (Y) containing 30-55 mass parts of alcoholic solvent having a boiling point of 170-250° C., to form a base coating film; a step of adjusting the solid content of the base coating film to 70-100 mass %; a step of applying a clear paint (Z) comprising 40-60 mass parts of carboxyl-containing compound and 60-40 mass parts of polyepoxide onto the base coating film to form a clear coating film; and heating the intermediate coating film, base coating film and clear coating film at 100-120° C. for 3-10 minutes and thereafter further heating them at 130-160° C. for 10-30 minutes; are successively carried out.